Finding the Fourth Proportional to 65,959.29, 91,044.50 and 42,085.92

Step by Step Solution

1. Step 1: Write the proportion equation
   65,959.29 : 91,044.50 = 42,085.92 : x
2. Step 2: Convert to fraction form
   65,959.29/91,044.50 = 42,085.92/x
3. Step 3: Cross multiply
   65,959.29x = 91,044.50 × 42,085.92
4. Step 4: Simplify right side
   65,959.29x = 3,831,691,333.01
5. Step 5: Solve for x
   x = 3,831,691,333.01/65,959.29
6. Step 6: Final answer
   x = 58,091.76